C.I.35870;Direct Black 75;C.I.Direct Black 75;Direct black 75 (C.I. 35870);C.I.Direct Black 75:C.I.35870;3-[[4-[[4-[[1-Hydroxy-7-[(2-hydroxy-6-sodiosulfo-1-naphthalenyl)azo]-3-sodiosulfo-2-naphthalenyl]azo]-6-sodiosulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]naphthalene-1,5-disulfonic acid disodium salt
Direct black 75 (C.I. 35870) Chemische Eigenschaften,Einsatz,Produktion Methoden
synthetische
3-Aminonaphthalene-1,5-disulfonic acid diazo, and Naphthalen-1-amine coupling, again diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, product to diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling, and then diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling.
Properties and Applications
blue ash. Dark grey powder. Soluble in water as dark blue, soluble in ethanol. The strong sulfuric acid dyes for violet black, diluted into dark purple. The dye solution to join strong hydrochloric acid tresses, precipitation; Add thick still as dark blue sodium hydroxide solution, but have precipitation. Water-soluble general, sensitive to that fights. In dyeing copper and iron ion colored light basic unchanged. Used for cotton, viscose and their blended fabric and silk of dyeing and printing, also used in leather and paper color. Can and dispersal dyes with bath of high temperature on polyester/cotton blended fabric dyeing.
Standard
Acid Resistance
Alkali Resistance
Light Fastness
Soaping
Water
Fading
Stain
Fading
Stain
ISO
5
5
5
2
2
AATCC
4
5
5
2-3
2-3
<
Direct black 75 (C.I. 35870) Upstream-Materialien And Downstream Produkte
3-[[4-[[4-[[1-Hydroxy-7-[(2-hydroxy-6-sodiosulfo-1-naphthalenyl)azo]-3-sodiosulfo-2-naphthalenyl]azo]-6-sodiosulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]naphthalene-1,5-disulfonic acid disodium salt
C.I.35870
C.I.Direct Black 75
Direct Black 75
C.I.Direct Black 75:C.I.35870
2679-49-4
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